Home / 20,083.26-27,715.61-12,123.93

Finding the Fourth Proportional to 20,083.26, 27,715.61 and 12,123.93

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Solution

The fourth proportional to 20,083.26, 27,715.61 and 12,123.93 is: 16,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.26 : 27,715.61 = 12,123.93 : x
  2. Step 2: Convert to fraction form
    20,083.26/27,715.61 = 12,123.93/x
  3. Step 3: Cross multiply
    20,083.26x = 27,715.61 × 12,123.93
  4. Step 4: Simplify right side
    20,083.26x = 336,022,115.55
  5. Step 5: Solve for x
    x = 336,022,115.55/20,083.26
  6. Step 6: Final answer
    x = 16,731.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.